Question

我用VC6.0做个简单的对话框程序，提示错误must have class/struct/union type

我在同一个对话框中加入的几个按钮，添加成员后，写单击相应函数
void CMy9_1Dlg::OnButton1()
{
// TODO: Add your control notification handler code here
m_btn1.SetWindowText("你已按下了按钮！");

}

void CMy9_1Dlg::OnButton2()
{
// TODO: Add your control notification handler code here
m_btn2.SetWindowText("按钮已被按下！");
}

void CMy9_1Dlg::OnRadio1()
{
// TODO: Add your control notification handler code here

m_rad1.SetCheck(1);

}

void CMy9_1Dlg::OnCheck1()
{
// TODO: Add your control notification handler code here
if(m_chk1.GetCheck()>0)
m_chk1.SetCheck(0);
else
m_chk1.SetCheck(1);
}

编译错误是：D:\编程\9_1\9_1Dlg.cpp(198) : error C2228: left of '.SetCheck' must have class/struct/union type
D:\编程\9_1\9_1Dlg.cpp(205) : error C2228: left of '.GetCheck' must have class/struct/union type
D:\编程\9_1\9_1Dlg.cpp(206) : error C2228: left of '.SetCheck' must have class/struct/union type
D:\编程\9_1\9_1Dlg.cpp(208) : error C2228: left of '.SetCheck' must have class/struct/union type
执行 cl.exe 时出错.

Answer 1

你在设置ckeckBox的成员变量时m_chk1默认是value BOOL 你要改成Control空间 这样才能用SetCheck()
删了这个变量重新设置一次